### The Katsumata transformation (C:Katsumata21) 1. Can't rewind quantum computers! 2. Write up standard sigma protocol ![[Pasted image 20240905152820.png]] 3. Define commitment protocol ![[Pasted image 20240905152842.png]] 4. Write up the combined protocol ![[Pasted image 20240905152916.png]] 5. -> get 1-soundness! ![[IMG_8420.jpg]] ![[IMG_8421.jpg]]